bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
Row 0
Row 1
Row 2
Row 3
Row 252
Row 253
Row 254
Row 255
P1o
P2o
P2o
P1o
P1o
P1o
P8e
P8e
P8e
P8e
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
Row 0
Row 1
Row 2
Row 3
Row 252
Row 253
Row 254
Row 255
P1o
P2o
P2o
P1o
P1o
P1o
P8e
P8e
P8e
P8e
P16e
P16e
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
Row 0
Row 1
Row 2
Row 3
Row 252
Row 253
Row 254
Row 255
P1o
P2o
P2o
P1o
P1o
P1o
P8e
P8e
P8e
P8e
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
bit7 bit6
bit5
bit4 bit3
bit2
bit1 bit0
Row 0
Row 1
Row 2
Row 3
Row 252
Row 253
Row 254
Row 255
P1o
P2o
P2o
P1o
P1o
P1o
P8e
P8e
P8e
P8e
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
Row 0
Row 1
Row 2
Row 3
Row 252
Row 253
Row 254
Row 255
P1o
P2o
P2o
P1o
P1o
P1o
P8e
P8e
P8e
P8e
P16e
P16e
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
Row 0
Row 1
Row 2
Row 3
Row 252
Row 253
Row 254
Row 255
P1o
P2o
P2o
P1o
P1o
P1o
P8e
P8e
P8e
P8e
P16e
P16e
gpmc-027
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
Row 0
Row 1
Row 2
Row 3
Row 252
Row 253
Row 254
Row 255
P1o
P1e
P1o
P1e
P1o
P1e
P1o
P1e
P2o
P2e
P2o
P2e
P4o
P4e
P8e
P8o
P8e
P8o
P8e
P8o
P8e
P8o
P16e
P16o
P16e
P16o
P1024e
P1024o
256 Bytes input
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit 0
Row 0
Row 1
Row 2
Row 3
Row 252
Row 253
Row 254
Row 255
P1o
P1e
P1o
P1e
P1o
P1e
P1o
P1e
P2o
P2e
P2o
P2e
P4o
P4e
P8e
P8o
P8e
P8o
P8e
P8o
P8e
P8o
P16e
P16o
P16e
P16o
P1024e
P1024o
256 Bytes input
gpmc-028
Public Version
General-Purpose Memory Controller
www.ti.com
Figure 10-27. Hamming Code Accumulation Algorithm (2/2)
Unused parity bits in the result registers are set to 0.
shows ECC computation for a 256-byte data stream (read or write). The result includes six
column parity bits (P1o-P2o-P4o for odd parities, and P1e-P2e-P4e for even parities) and sixteen row
parity bits (P8o-P16o-P32o--P1024o for odd parities, and P8e-P16e-P32e--P1024e for even parities).
Figure 10-28. ECC Computation for a 256-Byte Data Stream (Read or Write)
shows ECC computation for a 512-byte data stream (read or write). The result includes six
column parity bits (P1o-P2o-P4o for odd parities, and P1e-P2e-P4e for even parities) and eighteen row
parity bits (P8o-P16o-P32o--P1024o- - P2048o for odd parities, and P8e-P16e-P32e--P1024e- P2048e for
even parities).
2166
Memory Subsystem
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated
Содержание OMAP36 Series
Страница 174: ...174 List of Tables SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 692: ...692 MPU Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1084: ...1084 IVA2 2 Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1990: ...1990 2D 3D Graphics Accelerator SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2334: ...2334 Memory Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2700: ...2700 Memory Management Units SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2868: ...2868 HDQ 1 Wire SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2974: ...2974 UART IrDA CIR SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3054: ...3054 Multichannel SPI SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3462: ...3462 MMC SD SDIO Card Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3508: ...3508 General Purpose Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3584: ...3584 Initialization SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3648: ...3648 Debug and Emulation SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...